Railway signaling



April 1930. F. c. LAVARACK ET AL l,752,493

RAILWAY S IGNALING Filed Aug. 4, 1925 Patented Apr. l, 1930 UNITEDSTATES FREDERICK C. LAVARAGK, OF

MONTCLAIR, NEW JERSEY, AND DANIE-L OF ROANOKE, VIRGINIA W. RICHARDS,

RAILWAY S IGNALING Application filed August 4, 1925. Serial No. 48,030.

This invention relates to raiways, more especially to railway trackcircuit signaling and particularly to a support for a cable bonded tothe rail.

In practice, as is well understood by those skilled in the railwaysignaling art, it is necessary to electrically bond an electricalconductor, as a cable, to the web of a rail. This cable, especially, ifof the form known as parkway cable, as is now commonly used, is buriedin the ground and emerges therefrom adjacent the point where it is to beconnected to the rail. It has been found necessary to rigidly attachthis cable to the rail by means other than the bonding connection sothat in case the rail vibrates unduly, the eifect will not beconcentrated at the point of bonding, as the cable would soon break. Furthermore, if the rail runs unduly a severe strain, perhaps breakingthe bonding will occur unless the cable is attached rigidly to the railat some point on the cable where the full cross section of the cable maybe taken advantage of. e

A principle object ofapplicants' invention is to provide a means forsupporting a cable on a rail so that the difficulties hereinbeforementioned will be avoided.

Other objects and advantages will appear as the description of theparticular physical embodiment selected to illustrate the inventionprogresses and the novel features of the invention will be pointed outin the appended claims.

In describing the invention in detail and the particular physicalembodiment selected to illustrate the inventon reference will be had tothe accompanying drawing wherein has been illustrated a preferredphysical embodiment of the invention and wherein like characters ofreference designate corresponding parts throughout the several views inwhich:

Figure 1 is a side elevational View of a fragment of railway rail withour invention applied thereto; Fig. 2, is a cross sectional View on theplane indicated by the line II-II of Fig. 1; Fig. 3, is a crosssectional View on the plane indicated by the line III-III of Fig. 1;Fig. 4, is a View illustrating a clip used with the invention, beforebeing formed; Fg. 5, lllustrates a perspective View of a rail. 2designates a bonding pin used to mechancally and electrically attach thebared end 3 of cable or wire 4 to the web' of the rail 1.

In order to rigdly support cable 4 and hold the same firmly to the railat a point where the 'ull cross section of the wire or cable may beavailed of, applicants provide two similarly formed but oppositelydisposed clamping plates 5 and 6. These plates have an orifice'in eachend and are disposed on opposite sides of the cable 4 with plate 6'bearng against the edge of the flange of the rail.

Applicants pass the hook 7 of a hook bolt 8 through the orifice of eachplate and rest the end 9 thereof on the upper face of the flange of therail.

The threaded end of the hook bolt is passed through the lug 10 of therail clip, designated as a whole by 11 and the rail clip is fitted tothe fiange of the rail as shown in Fig. 2, and then the nut 12 is put inplace and tightened.

From the foregoing description it will be readily understood that thecable 4 is rigidly and firmly attached to the rail l at a point wherethe full cross section of the wire may be taken advantage of and that ifthe rail vibrates, this vibration will not be concentrated at or aboutpin 2 because the cable being held rigidly at the cable support, theportion 3 and the rail Will move together, not independently.Furthermore if the rail runs the strain will be applied to the supportand not to the pin 2.

Applicants having described their inventon and a particular physicalembodiment selected to illustrate the invention, nevertheless, desire tohave it understood that the form selected is merely illustrative anddoes not eXhaust the possible` tangible embodiments of the meansunderlying the inventon.

What we claim and desire to secure byLetters Patent of the UnitedStates. is:

l. As a cable support adapted to hold a cable firmly to a rail, thecombnation of a clip adapted to engage a flange of a rail of a hook boltadapted to be held in place on one edge of the opposte fiange of a railby the clip and oppostely dsposed orficed clamp- 5 ing plates holding acable therehetween and against the other edge of the rail fiange byhaving the hook of the bolt pass through both the orifices forned in oneend of the plates and the o'fices formed in the other end of the pletessaidhook bolt adapted to have the end of the hook rest on the upper faceof the fiange of the rail.

2. As a cable support for ho1dng"a"cable firmly to a rail; a clip fo'nedfor engagement With a rail fiange and adapted to bear both onthe edgeand` theupper'and the lower face-and formed with a depending lug formedwith an o'ifice ;a hook bolt passing through the" o'rifice in the saidlug and-provided With a nutbearing thereagainst; a clamping plateadaptedbobear againstthe opposite edge of the flange of the rail andormed with an orifice in each end; another clamping plate opposed tothefirst clamping plate and forned with anorifi'ce neach end matching theorfice of the first nentioned plate, and the hook of the` hook boltadapted to" pass through the o'rifice and *adapted u to have its freeend rest on theupper :face of the fiange of the rail 80 Whe-'eby whenthenut is'tightened with a cable between the platesell parte are adapted tobe held firmly and mnovably to the rail.

FREDERICK C. LAVARACK. DANIEL W. RIGHARDS.

